118184441721 has 16 divisors (see below), whose sum is σ = 158214174720. Its totient is φ = 78472365840.

The previous prime is 118184441717. The next prime is 118184441797. The reversal of 118184441721 is 127144481811.

It is not a de Polignac number, because 118184441721 - 2² = 118184441717 is a prime.

It is not an unprimeable number, because it can be changed into a prime (118184441621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2548540 + ... + 2594498.

It is an arithmetic number, because the mean of its divisors is an integer number (9888385920).

Almost surely, 2^118184441721 is an apocalyptic number.

It is an amenable number.

118184441721 is a deficient number, since it is larger than the sum of its proper divisors (40029732999).

118184441721 is a wasteful number, since it uses less digits than its factorization.

118184441721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49396.

The product of its digits is 57344, while the sum is 42.

The spelling of 118184441721 in words is "one hundred eighteen billion, one hundred eighty-four million, four hundred forty-one thousand, seven hundred twenty-one".